/*
 * Copyright (c) 2003-2010, Live Media Pty. Ltd.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice, this list of
 *     conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright notice, this list of
 *     conditions and the following disclaimer in the documentation and/or other materials
 *     provided with the distribution.
 *  3. Neither the name of Live Media nor the names of its contributors may be used to endorse
 *     or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.colony.transport.udp;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import com.argot.remote.transport.TypeEndPoint;


public class UdpEndPoint
implements TypeEndPoint
{
	private boolean _reading;
	private UdpClient _client;
	
	private InputStream _in;
	private ByteArrayOutputStream _out;
	
	public UdpEndPoint( UdpClient client )
	{
		_client = client;
		_in = new UdpInputStream();
		_out = new ByteArrayOutputStream();
	}
	
	public InputStream getInputStream()
	{
		return _in;
	}

	public OutputStream getOutputStream()
	{
		return _out;
	}
	
	private class UdpInputStream
	extends InputStream
	{
		ByteArrayInputStream _dataIn;
		
		private void checkRequest()
		throws IOException
		{
			if ( _reading )
			{
				return;
			}
			else
			{	
				_reading = true;

				_dataIn = _client.sendRequest(_out);
			}

		}

		public int read() throws IOException
		{
			checkRequest();
			return _dataIn.read();
		}
		
		public void close() throws IOException
		{
			checkRequest();
			_dataIn.close();			
		}

		public int read(byte[] arg0, int arg1, int arg2) throws IOException
		{
			checkRequest();
			return _dataIn.read( arg0, arg1, arg2 );
		}

		public int read(byte[] arg0) throws IOException
		{
			checkRequest();
			return _dataIn.read(arg0);
		}

	}



	
}
